Table 1.
Means and ranges of anthropometric measures and physical activity level and the distributions of subjects by smoking class
| Males | Females | Both sexes | ||
|---|---|---|---|---|
| |
Means (ranges) of anthropometric measures and physical activity |
No. of valid observations |
||
| BMI 16 yr (kg/m2) |
21.2 (15.6–33.0) |
20.7 (14.5–35.8) |
20.9 (14.5–35.8) |
550 |
| BMI 19 yr (kg/m2) |
23.8 (16.0–38.1) |
22.1 (15.8–39.9) |
22.8 (15.8–39.9) |
558 |
| Weight 16 yr (kg) |
65.6 (45.2–112.1) |
55.8 (37.5–94.0) |
59.9 (37.5–112.1) |
550 |
| Weight 19 yr (kg) |
75.7 (52.5–123.6) |
59.8 (39.9–114.1) |
66.4 (39.9–123.6) |
558 |
| Height 16 yr (cm) |
175.6 (158.2–196.2) |
164.1 (134.7–179.2) |
168.9 (134.7–196.2) |
550 |
| Height 19 yr (cm) |
178.3 (158.5-201.0) |
164.3 (145.0-179.0) |
170.1 (145.0-201.0) |
558 |
| Waist circumference 16 yr (cm) |
75.9 (62.5-108.1) |
70.4 (59.5-100.5) |
72.7 (59.5-108.1) |
537 |
| Waist circumference 19 yr (cm) |
81.8 (62.5-121.0) |
72.3 (59.0-118.5) |
76.3 (59.0-121.0) |
556 |
| Physical activity level (MET hours/week#) |
34.6 (4.0-76.0) |
29.6 (2.8-64.3) |
31.7 (2.8-76.0) |
555 |
| |
Distributions of subjects by smoking class |
|
||
| Smoking (pack- years*) at 19 yr |
No. (%) |
No. (%) |
No. (%) |
|
| None |
177 (76) |
239 (74) |
416 (75) |
|
| 0.01–3.99 |
37 (16) |
67 (21) |
104 (19) |
|
| ≥4.00 | 19 (8) | 19 (6) | 38 (7) | |
# Metabolic equivalent (MET) hours per week calculated from physical activity level outside school hours.
* Years of smoking multiplied by the packs of cigarettes smoked daily.